Safety & security of an installation can create many different demands for the restriction of access to manholes. In many applications you would wish to restrict access to the chamber beneath the manhole cover only to authorised persons, In other cases you may wish to prevent the theft of the manhole cover or prevent the risk of someone falling into the open chamber once removed. However, in other applications it maybe desirable to prevent terrorists or other malicious persons gaining access to further their causes. Concealing explosives or possibly attacking the infrastructure below. Forecourt Solutions can offer a range of security solutions to meet all applications. We have classified them into 4 groups
Low Risk - Low Cost deterent to opportunistic thieves and pranksters
Meduim Risk - Still relatively Low Cost higher security deterent to even premediated thieves and persons with criminal intent.
High Risk - Higher Cost security for higher risk installations designed to keep out
Low Risk - Prevention of cover theft, prevention of opportunistic access to manhole chamber
For this level of hazard we recommend the use of our 1/4 bayonet turn buckle locking covers which utilise a unique locking key to open the cover. We can also provide either a client or application specific locking key should this be desired. Typical uses: All applications (Security systems suitable for new cover installations only)
Medium Risk - Prevention of cover theft, and delay even determined attempts to access to manhole chamber
For this level of hazard we recommend the use of our 1/4 bayonet turn buckle with high security patented scroll head covers which utilise a patented coded key to open the cover. We can also provide either a client or application specific locking key should this be desired. The 1/4 turn bayonet can be replaced by a scroll headed stainless steel machine screw if speed of access or regularity of access is low. Typical uses: Deep equipment chambers, railway installations, gas and electricity installations etc.
High Risk - In addition to addressing the meduim level risk the high level risk security is designed to prevent sustained attempts to remove the cover.
In this application a physical clamp "Stabiloc" is used to prevent lever assisted removal of the cover and allow for such attempts at cover removal to be detected and recorded. This product is ideal for applications where it is likely that unauthorised access to the manhole chamber will be attempted. Typical uses: Utility manholes, Chambers with high risk infrastructure below, Petrol Stations, Chemical Plants, Government Offices, Prisons, Hospitals and Airports. (Security systems suitable for both new and retrofit to existing installed covers)
High Risk - Meeting the requirements of both low and medium risk systems but with the ability to monitor remotely the covers for attempted unauthorised entry.
In this application a "Stabiloc" clamp is again utilised to prevent unauthorised access but the locking mechanism is monitored remotely using radio frequency technology to identify attempts to breach the Stabiloc clamp. Suitable for high risk applications where entry must be prevented to avoid security breaches to infrastructure. Typical uses: Embassies, Nuclear and Conventional Power Stations, Royal Palaces, Banks, Research Laboratories and Military Establishments. (Security systems suitable for both new and retrofit to existing installed covers)
For further information regarding the application of Stabiloc please use this link to download a brief overview